212342041 has 4 divisors (see below), whose sum is σ = 217280272. Its totient is φ = 207403812.

The previous prime is 212341999. The next prime is 212342047. The reversal of 212342041 is 140243212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212342041 - 2²⁷ = 78124313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212342047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2469051 + ... + 2469136.

It is an arithmetic number, because the mean of its divisors is an integer number (54320068).

Almost surely, 2^212342041 is an apocalyptic number.

It is an amenable number.

212342041 is a deficient number, since it is larger than the sum of its proper divisors (4938231).

212342041 is an equidigital number, since it uses as much as digits as its factorization.

212342041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938230.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 212342041 is about 14571.9607808970. The cubic root of 212342041 is about 596.5936993814.

Adding to 212342041 its reverse (140243212), we get a palindrome (352585253).

The spelling of 212342041 in words is "two hundred twelve million, three hundred forty-two thousand, forty-one".